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DEPARTMENT OF TRANSPORTATION,
MOTOR CARRIER TRANSPORTATION DIVISION

DIVISION 105

EQUIPMENT: LOGS, POLES OR PILING

740-105-0010

General Information

Any empty trailer placed upon any truck or any empty pole trailer loaded upon any truck-tractor shall be fastened by not less than one chain, wire rope or synthetic webbing and one tensioning or locking device in such manner as to prevent it from falling, rolling or sliding off the truck or truck-tractor while in transit.

The reach splice, including the weld, must be constructed in substantial compliance with the Department's approved splice configuration. A diagram of the approved splice configuration is available through the office of the Motor Carrier Transportation Division, 550 Capitol St. NE, Salem, Oregon 97310.

(1) All welding will be accomplished with either the SMAW procedure using covered electrodes, or the FCAW procedure which procedures are detailed in the AWS structural welding code (1992), which is hereby adopted by this reference.

(2) These procedure specifications shall be considered prequalified as detailed in AWS D1.1-92. Weld joints not conforming to the above requirements will require separate weld procedure specification testing.

(3) Prequalified joint procedure specifications LTR-SMAW-1 and LTR-FCAW-1, as specified in AWS D1.1 American Welding Society Structural Welding Code, 1992, are part of this procedure.

(4) Base materials welded under this specification shall conform to one of the following ASTM material specifications (1993), which are hereby adopted by this reference:

(a) ASTM A500, Grade B;

(b) ASTM A572, Grades 50, 60;

(c) ASTM A656, Type 70.

(5) Backing materials must be of the same material as the base metal, or may be any one of those listed in AWS D1.1-92. (Copies of AWS D1.1., American Welding Society Structural Welding Code, 1992, is available through the office of the Motor Carrier Transportation Division, 550 Capitol St. NE, Salem, Oregon 97310.)

[Publications: Publications referenced in this rule are available from the agency.]

(1) Filler metals used for production welding shall conform to one of the following AWS classifications:

(a) SMAW Process - E7018-X;

(b) FCAW Process - E71T-6;

(c) These electrodes must conform to the requirements of AWS A5.1 and AWS A5.20.

(2) Low Hydrogen Electrode Storage Conditions - All electrodes having low hydrogen coverings conforming to AWS A5.5 shall be purchased in hermetically sealed containers or shall be dried for at least two hours between 450 degrees F (230 degrees C) and 500 F (260 degrees C) before they are used. Electrodes shall be dried prior to use if the hermetically sealed container shows evidence of damage. Immediately after opening of the hermetically sealed container or removal of the electrodes from drying ovens, electrodes shall be stored in ovens held at a temperature of at least 250 degrees F (120 degrees C).

[Publications: The publication(s) referred to or incorporated by reference in this rule are available from the agency.]

The electrical characteristics shall be DC reverse polarity base negative for the SMAW process, and DC straight polarity base positive for the FCAW process. The amperage and voltage ranges shall be substantially those listed on the joint design specification procedure.

Arc strikes shall be restricted to the area that will be covered by weld metal in the completed production weld. Arc strikes visible on post weld inspection shall be removed in such a manner as to restore the original surface.

Welds shall be made by the stringer bead technique or the weave technique; when the weave technique is used for a shielded metal arc welding process, the width of weave will be restricted to four (4) times the electrode diameter.

(1) Preweld weldment members shall conform to joint configuration cleanliness, fit-up, and tack welding as specified in this procedure.

(2) In-Process - The welding will be checked to determine that the provisions of this procedure are being followed such as correct preheat, correct electrode, correct weld, layer size, correct electrode size, etc.

(3) Post-Weld - The finished weld shall be inspected to verify conformance to this specification and weld procedure. The following weld metal defects are considered unacceptable:

(a) Cracks;

(b) Craters;

(c) Porosity exceeding 3/8-inch in any linear inch of weld and 3/4-inch in any 12 inches length of weld;

(d) Incomplete fusion or penetration;

(e) Undercut exceeding 0.01 inch transverse to primary stress and 1/32 inch for all other situations;

(f) Fillet weld undersize exceeding 1/16-inch over more than 10 percent of the weld length.

(4) It is highly recommended that postweld inspection by magnetic particle or liquid penetrant methods be employed if available. These methods are an enhancement of visual inspection allowing detection of cracks or discontinuities not discemible to the eye.

(1) Welders performing work under this procedure shall be qualified in accordance with AWS D1.1-92.

(2) Certificate of Welder Qualifications can be arranged for at community colleges, unions, and testing laboratories.

(3) Record of Certification. A record of welder certification shall be maintained by motor carriers employing welders completing welded repairs on LTRs. Such records shall be maintained at the motor carrier's or repair facility's address where such repairs are completed. The record of certification shall include at a minimum:

(a) Welder's name;

(b) Certification number;

(c) Date of certification;

(d) Name of facility where certification was completed;

(e) Name and title of person who issued the certification; and

(f) Dates this certification was used.

[Publications: The publication(s) referred to or incorporated by reference in this rule are available from the agency.]

The official copy of an Oregon Administrative Rule is
contained in the Administrative Order filed at the Archives Division,
800 Summer St. NE, Salem, Oregon 97310. Any discrepancies with the
published version are satisfied in favor of the Administrative Order.
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